-7+(-2)
1/2/5
4(-2x-3)=-4x-8
15×4−20÷4+(3×6)
3*3-3/3+3
5x+y=36
y=4x
x/5 -3=9
Poppy has £7.04 it costs 8p to send a text message how many text messages can she send?
Seven independent trails of binomial experiment with probability of success p = 0.8 and probability of failure q = 0.2 are perform...
x-3/5=9
